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This document provides a detailed analysis of TypeScript compiler performance across various Node.js versions.
Benchmarks were conducted on 1000 test suites in Automock and NestJS environments.
Performance Comparison (Compared to Fastest - SWC)
Node v20
Environment
tsc (Slower by %)
tsc-isolated (Slower by %)
automock
+93.1%
+9.6%
NestJS
+90.4%
+3.8%
Node v18
Environment
tsc (Slower by %)
tsc-isolated (Slower by %)
automock
+42.0%
+1.9%
NestJS
+42.1%
-0.1%
Node v16
Environment
tsc (Slower by %)
tsc-isolated (Slower by %)
automock
+75.9%
+25.7%
NestJS
+56.9%
-8.0%
Environment Speed Comparison (Automock vs. Nestjs)
Node v20
Compiler
Speed Increase (%)
tsc
+28.9%
tsc-isolated
+26.0%
swc
+23.2%
Node v18
Compiler
Speed Increase (%)
tsc
+25.4%
tsc-isolated
+23.9%
swc
+25.4%
Node v16
Compiler
Speed Increase (%)
tsc
+28.0%
tsc-isolated
+13.6%
swc
+35.8%
Key Insights
Performance Across Node Versions:
All compilers show decreased performance with older Node.js versions.
The impact is more pronounced in the NestJS environment.
Comparing Compilers:
swc consistently outperforms tsc and tsc-isolated in all Node versions.
tsc vs. tsc-isolated:
tsc-isolated demonstrates better performance than tsc across all Node versions.
Automock vs. Nestjs:
All compilers are faster in Automock than in NestJS, indicating higher complexity or resource demands
in NestJS.
Speed Difference Between Automock and NestJS
Node v20 Analysis:
All compilers exhibited significantly faster performance in the Automock environment compared to NestJS.
tsc showed a 28.9% speed increase in Automock, while tsc-isolated and swc displayed increases of 26.0% and
23.2%, respectively.
This suggests that Automock is substantially less resource-intensive than NestJS.
Node v18 Insights:
The trend of faster performance in Automock persists in Node v18.
tsc was 25.4% faster in Automock, closely followed by swc with a similar 25.4% increase, and tsc-isolated
showed a 23.9% increase.
These results further underline the efficiency and lower complexity of Automock compared to NestJS.
Node v16 Observations:
The performance gap between Automock and NestJS remains notable in Node v16.
tsc registered a 28.0% speed increase in Automock, while tsc-isolated had a 13.6% increase. Notably, swc
showed the most significant difference with a 35.8% increase.
This indicates that Automock maintains its efficiency advantage over NestJS even in older Node.js environments.
In summary, across all tested Node.js versions, Automock consistently outperforms NestJS in terms of speed for all
compilers. The difference is marked and suggests that Automock is a more efficient environment, possibly due to lower
complexity or better resource optimization.